The law of imagery is generally first theoretically derived or - depending on the class's proficiency - simply stated and then experimentally confirmed or tested. The experimental test can be performed as suggested.
Principle
The law of imagery is generally first theoretically derived or – depending on the class’s proficiency – simply stated and then experimentally confirmed or tested. The experimental test can be performed as suggested.
It is also possible to conduct the experiment in this way without previous knowledge; however, in this case the student will not understand why the reciprocals of f, g and b should be taken. This is also the case when the law of imagery is only stated.
Benefits
Tasks
Which law holds true for images with a convex lens? Determine which correlations exist between the focal length f, the object distance g and the image distance b when real images are formed with a convex lens.
| Device name | Article no. | Quantity |
|---|---|---|
| Optical profile-bench for student experiments, l = 600 mm | 08376-00 | 1 |
| Light box, halogen 12V/20 W | 09801-00 | 1 |
| Bottom with stem for light box | 09802-20 | 1 |
| Lens on slide mount, f=+100mm | 09820-02 | 1 |
| Slide mount for optical bench | 09822-00 | 2 |
| Screen, white, 150×150 mm | 09826-00 | 1 |
| Glass-beaded object in L”-form | 11609-00 | 1 |
| PHYWE Power supply, 230 V,DC: 0…12 V, 2 A / AC: 6 V, 12 V, 5 A | 13506-93 | 1 |
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